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故障现象一辆行驶里程仅为2.3万km的2015年产雪佛兰科鲁兹轿车(发动机型号为L2B),起动时能听见起动机吸合的声音,但起动机不运转。故障诊断接车后观察,车况良好。接通点火开关,仪表盘上的各指示灯点亮,起动发动机,能听见起动机吸合的“哒哒”声,但起动机不运转,从现象上来看,类似蓄电池亏电。断开点火开关,测量蓄电池的静态电压,为11.95 V,正常。使用扳手转动曲轴360°,无卡滞现象。由于蓄电池电压
Symptoms A 2015 Chevrolet Cruze sedan (engine model L2B) with a mileage of only 23,000 km starts to hear a starter pull but the starter does not run. Troubleshooting After the car was observed, the condition is good. Turn on the ignition switch, the instrument panel lights, start the engine, can hear the starter pull the “da da” sound, but the starter does not run from the point of view, similar to the battery power loss. Disconnect the ignition and measure the quiescent voltage of the battery at 11.95 V, normal. Use the wrench to rotate the crankshaft by 360 ° without jamming. Due to battery voltage